6175-45-7Relevant articles and documents
Cascade annulative π-extension for the rapid construction of carbazole based polyaromatic hydrocarbons
Banerjee, Ankush,Ghosh, Meghna,Kundu, Samrat,Maji, Modhu Sudan,Pal, Shyam Chand
supporting information, p. 5762 - 5765 (2021/06/16)
A Br?nsted acid catalyzed cascade benzannulation strategy for the one-pot synthesis of densely populated poly-aryl benzo[a]carbazole architectures is disclosed from easily affordable fundamental commodities. The efficacy of this technique was further validated via the concise synthesis of structurally unique carbazole based poly-aromatic hydrocarbons. Furthermore, the photo-physical properties of the synthesized compounds are thoroughly investigated.
Synergistic Catalysis of Se and Cu for the Activation of α-H of Methyl Ketones with Molecular Oxygen/Alcohol to Produce α-Keto Acetals?
Chen, Chao,Cao, Zhicheng,Zhang, Xu,Li, Yiming,Yu, Lei,Jiang, Xuefeng
, p. 1045 - 1051 (2020/06/30)
Selenium and copper synergistically catalyzed the oxidation/alkoxylation of methyl ketones to synthesize α-keto acetals directly. Using O2 as oxidant and alcohol as solvent and alkoxylation reagent, the reaction is practical from industrial viewpoint. Mechanistic studies revealed that copper promoted the oxidation of organoselenium intermediates with O2 to allow the key rearrangement and selenoxide syn-elimination regenerating the catalytically active organoselenium species.
Stereoselective Ketone Rearrangements with Hypervalent Iodine Reagents
Malmedy, Florence,Wirth, Thomas
supporting information, p. 16072 - 16077 (2016/10/30)
The first stereoselective version of an iodine(III)-mediated rearrangement of arylketones in the presence of orthoesters is described. The reaction products, α-arylated esters, are very useful intermediates in the synthesis of bioactive compounds such as ibuprofen. With chiral lactic acid-based iodine(III) reagents product selectivities of up to 73 % ee have been achieved.